import * as Sequelize from 'sequelize' async function up (utils: { transaction: Sequelize.Transaction queryInterface: Sequelize.QueryInterface sequelize: Sequelize.Sequelize db: any }): Promise { { const data = { type: Sequelize.STRING(2000), allowNull: true, defaultValue: null } await utils.queryInterface.changeColumn('thumbnail', 'fileUrl', data) } } function down (options) { throw new Error('Not implemented.') } export { up, down }